Hasp-type fastener



Jan. 12, 1937. L. A. BITTORF HASP TYPE FASTENER Original Filed Oct. 8, 1932 1a 719 if? v ,4 I n Patented Jan. 12, 1937 I STA PAT? 'FFIQE HASP-TYPE FASTENER Louis A. Bittorf, Sterling, 111., assignor to National Manufacturing Company, Sterling, 111., a corporation of Illinois Original application October 8, 1932, Serial No. 636,789. Divided and this application July 25,

1934, Serial No. 736,820

1 Claim.

My invention relates to fastener devices of the hasp-type which are particularly useful in connection with the fastening of doors and various This applica- Serial No. 636,789, filed October 8, 1932.

One of the objects of my invention is to provide an improved hasp-type fastener which is ex- .ceedingly simple in construction, is inexpensive 10 to manufacture, and is quite strong and durable, and is fully effective as a closure fastening means over long periods of use notwithstanding Wear and weather-exposure effects.

Another object is to provide a structure of the foregoing character that includes a hasp member so constructed and arranged that it is placed and held under tension in a fastening position when an end part thereof is engaged with a keeper; whereby the hasp parts are held in fastening position against accidental displacement by vibration, shocks, wind pressures and various strains and stresses that may be imposed thereon. More specifically, to the foregoing end, my invention provides a hasp device having a hinge member adapted to be secured to an object and a hasp member hingedly secured thereto and having its portion adjacent the hinge adapted to seat against the hinge member with its outer end offset outwardly away from the hinge member and. interconnected to its other portion by an intermediate flexible portion that permits the outer offset end portion to flex and place the hasp member under tension when it is engaged with a keeper.

Other objects and advantages will become apparent as this description progresses and by reference to the drawing wherein,-

Figure 1 is a fragmental top edge view of a structure having my invention applied thereto; Fig. 2 is a front elevational view of the structure shown in Fig. 1; and Fig. 3 is a section taken substantially on line 3-3 of Fig. 1.

Referring particularly to the drawing, I have illustrated a hasp structure applied to a door it) adapted to close an opening .ll formed by a plurality of frame members, one of which is shown at i2. The hasp fastener structure takes the form of a hinge member or leaf 13 secured to the door adjacent its free edge by a plurality of screws or other fastening devices l4. A hasp member I5 is connected to the hinge member I3 by a pintle l6, which hasp member i5 is arranged to fold over and upon the hinged plate l3 and which is of sufiicient length to extend beyond the edge of the door and over the frame member [2 in spaced relation with respect to the latter.

The frame member !2 supports a keeper structure which includes a base ll secured to the frame member by a plurality of screws or other fastening devices i8. This base is provided with a center and frustro-conical raised portion I! which rotatably receives a keeper member I9 which is yieldably connected thereto, preferably, in the manner more particularly set forth in my said original application. The keeper I 9 takes the form of a key-like head w having a slot l9 for the reception of a locking device as will be referred to more particularly hereinafter. The keeper head K9 is provided with a flat stem l9 that is so constructed and engaged as to hold the under side of the head in predetermined spaced relation with respect to the top or adjacent surface of the raised portion I'l of the base H. The under side of the keeper head tapers upwardly and outwardly from the keeper stem l9 providing on the opposite sides of said stem a cam-like surface Hi which insures a camming action for the securement of the parts as they are moved into and while they are in their fastened position. The hasp member I5 is provided with a rear portion [5 adjacent the pintle l6 that is of substantially the length of the hinge member 13 upon which it seats. The hasp member is further provided with an outer or free end portion l5 that is offset outwardly and longitudinally from the other portion I5 These portions 15* and 15 are interconnected, integrally, by an intermediate and diagonally directed portion l5 that is of itself flexible. In this arrangement, the hasp member l5 extends downwardly from the pintle l6 toward and seats upon the outer ends of the hinge member l3, thence diagonally outward and finally in horizontal direction substantially parallel with the hinge member 13; whereby there is provided in the hasp member a flexible V-shaped formation, the apex of which is seated upon the hinge member l3. In this manner, flexing of the outer end portion l5 of the hasp member by the application of pressiu'e thereto at any point there along is accommodated and facilitated. The offsetting of the hasp member end l5 is such that this ofiset portion is spaced from the adjacent face of the frame member 12 a distance substantially greater than the minimum distance between the keeper head and the base H.

The offset end W of the hasp member is provided with a longitudinal elongated slot 23 which is adapted to freely receive the keeper head It when the latter is rotated to position its plane along the longitudinal axis of such slot. When the hasp member I5 is moved toward the keeper member and the keeper member is passed through the slot 23 and rotated crosswise of such slot, the outer tapered under edge l9 of the keeper head shaft engages or picks up the adjacent slotted edge surface of the member i5 and, as this rotation of the keeper is continued, the tapered surface of the head depresses the oifset portion 15 of the keeper member IS.

The hinged hasp structure is, preferably, formed of sheet metal or other suitable material which has some inherent flexibility and facilitates the hasp action to be described.

It will be obvious from the foregoing that by flexing the end 15 of the member l5 toward the frame member l2, as the keeper is rotated to its fastening position, the result is the holding of the keeper in its fastening position under tension; whereby the structure will not gradually move or creep into a position wherein the hasp member I5 will become loosened and freed from the keeper when subjected to various vibrations, shocks, etc. Furthermore, the foregoing construction provides a very simple and inexpensive fastener device which is exceedingly strong and durable, which operates efiiciently for indefinite periods of time, regardless of wear and weather exposure, and which can be mounted in any desired position and will always remain fastened except when manipulated to unfasten the same. In the event that it is desired to lock the closure in its fastened position, any suitable form of lock may be passed through the keeper head slot I9 as will be readily understood. It will also be noted that with the particular arrangement of parts which I employ, the fastening devices l4 and I8 are concealed and rendered inaccessible when the structure is in its fastened position, thereby guarding, against opening of the door or closure ill by an unauthorized person when a lock is applied.- to the keeper l9.

While I have shown and described only one form of structure embodying my invention, it is to be understood that other changes in details and arrangements of parts may be made without departing from the spirit and scope of my invention as defined by the claim which follows.

I claim:

In a structure of the class described, a hasp fastener unit which includes a flat plate-like hinge member adapted to be secured to an object, a hasp member hingedly connected at one end to one end of said hinge member to fold over and upon the latter, and of such length that its outer end projects a substantial distance beyond the other end of said hinge member, said hasp member being formed of sheet metal and being so constructed that one portion extends forwardly and slightly downwardly from its hinge connection toward and into engagement at its outer end portion with the outer fiat end portion of said hinge member, a second portion extending upwardly and forwardly away from said hinge member, and a third portion extending forwardly in horizontal and substantially parallel relation to said forwardly and slightly downwardly extending portion, said second portion being adapted to abut and flex upon said hinge member when the horizontal portion of said hasp member is engaged and urged toward the plane of said hinge member by a keeper.

LOUIS A. BI'ITORF. 

